Sash-lock.



No.7 38,465. PATENTED SEPT. 8,1903;- H. H. MEYER,

SA LOOK. APPLIOATIO 1:1 mm. 25, 1903.

10 MODEL.

Tim

UNITED STATES Patented September 8, 1903.

PATENT OFFICE.

SASH-LOCK.

SPEGIFIOATION forming part of Letters Patent No. 738,465, datedSeptember Application filed February 25, 1903. 7 Serial No. 144,974. (Nomodel.)

To all whom it may concern:

Be it known that I, HERMANN H. MEYER, a citizen of the United States,residing at Cleveland, in the county of Cuyahogaand State of Ohio, haveinvented certain new and useful Improvements in Sash-Locks; and I dodeclare that the following is a full, clear, and exact description ofthe invention, which will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to sash-locks; and the invention consists in theconstruction and combination of the parts, substantially as shown anddescribed, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective view of the lockand cross-sections of two sashes with which the lock is engaged. Fig. 2is a plan view on a line corresponding substantially to 00 00, Fig. 1.Figs. 3 to 6, inclusive, represent details of the look, as hereinafterfully described.

The plan of this lock is to place a lockingbolt upon the top of thelower sash A to engage the window-casing and to lock the lower sash withupper sash (J, so that when such engagement is made neither sash can bemoved from that position. In this way I may provide for ventilation atthe top of the upper sash by lowering the same as much as 'may bedesired and making engagement therewith in its lowered positionrelatively as appears in Fig. 1. This is done by providing engagingpoints 'for the lock on the upper sash at different elevations.

As shown, B represents the locking-bolt supported in barrel D, which isfirmly affixed upon the top of lower sash A at its corner, and the saidbarrel is provided witha curved slot 2, andB has an arm 3, adapted torun in said slot and to be thrown into vertical position, as in Fig. 1,for looking or to be rotated downward and outward in the lower near endof said slot, so as to swing it back out of locking position, as in Fig.2. is in looking position, as in Fig. 3,it projects into a socket 4, inwindow-casing E, and there may be one or more such sockets or holes inthe said casing at different elevations as may be desired, which enablesventilation to be provided at the bottom of the lower sash by raisingthe same and bolting it into a socket When the boltv 4, higher up. Whenbolt Bis in looking position in' casing E, arm 3 stands upright and inposition to be used in looking the upper sash, and the said sash isshown here as having a recess 5 in its face, covered by plate 6,provided with a hole 0, somewhat resembling a keyhole, on the inner edgeof which is a cam 7, which gradually rises from its entrancepoint tostop projection 8 at the end of said cam.

The arm 3 itself has'a barrel 9 transversely across its top, which comesinto a horizontal position with its inner extremity opposite hole 0 inplate 6, and confined within this barrel is the locking device F, Fig.3. This device comprises a short shaft 10, engaged in barrel 9, a catch11, fixed on the inner end of said shaft, and a short lever 13 upon itsouter end and by which the said shaft and its catch are rotated toeffect locking engagement. When the catch is brought to position to beentered into the opening 0 in plate 6, it can only enter by carrying itspoint 01 into the corresponding point of said opening 0, wherecam-surface 7 begins. Then as the shaft 10 is rotated. catch 11 risesgradually over the said cam-surface 7 more or less to draw the sashestogether; but it cannot pass stop 8.

This effectually binds the sashes together and prevents rattling betweenthem, as well as excluding air, and makes the window air-tight in thisrespect. The dotted lines, Fig. 1, show a common: position of the catchwhen the window is closed.

In operation, therefore, bolt B is first brought into lockin gengagement with the window-casing, and this brings the locking mechanismfor the upper sash into position to be engaged. Then by pressing catch11 forward into opening a and behind cam 7 the-shaft 10 can be rotatedby its handle 13 and the catch will ride up on cam 7, and thuseffectually lock the upper sash, too. hen thus locked together, theparts are absolutely safe against opening from the outside except bysuch force as will break the window, for it is impossible to open eitherthe lower or the upper sash by picking or otherwise and without breakingthe window unless the lock be purposely opened from the inside.

In Fig. 5 I show bolt B and its arm and barrel as they appear beforeshaft 10 is insorted. After said shaft is placed in position in barrel 9the lips of the barrel are forced together and the barrel completed. InFig. 6 the barrel D is shown as having lips 14 and 15, which are closedover the bolt when the same has been put in position and the partsassembled. It will thus be seen also that there are two rockingmovements in the operation of these parts. The first is that of bolt B,which when it is moved to locking position is rotated, and then thelocking device for the upper sash is rotated in the barrel of the armintegral with said bolt to lock said sash.

Modifications of this invention might evidently be made and not departfrom the spirit thereof. For example, I might provide a cam about shaft10 at the base of handle 13 instead of placing the cam on the inside ofplate 6. Then, again, I might avoid the endwise movement of bolt B andthe engagement with the window-casing and simply have the bolt rotate soas to swing arm 3 back and forth, and thus lock the two sashes together.However, I prefer the present construction all around.

When arm 3 is pressed inward to make locking engagement, it drops into asmall recess 16 at the end of slot 2, and this forms a shoulder whichconfines said arm and prevents the bolt from being moved lengthwisewithout first disengaging the lock orcatch 11.

What I claim is 1. As a new article of manufacture, a sashlockcomprising a rotatable bolt and means to confine the same on a sash,said bolt having a fixed arm and a rotatable lock in the upper portionof said arm at right angles to said bolt and constructed at its innerend to make locking engagement with the upper sash, substantially asdescribed.

2. The bolt and the barrel in which the same is rotatably supported,said bolt provided with an upright arm and a barrel transverselythereon, and a rotatable locking member for the upper sash engaged insaid barrel and provided with a catch at one end and ahandle at theother end, substantially as described.

3. The bolt and. the barrel in which the same is rotatable, said bolthaving an integral arm with a barrel transversely at its top, arotatable lock for the upper sash in said barrel, and a plate having anopening through which said catch is engaged, in combination with thelower sash supporting said bolt and its barrel, and the upper sashsupporting said plate and having a recess behind the opening therein,substantially as described.

4. The window-casing provided with a bolthole and the window-sashestherein, in combination with a bolt on the lower sash engaged in saidhole in the window-casing and provided with an arm having a rotatablelock at its upper end, a cavity in the upper sash and a plate coveringthe same provided with a hole and a cam on its inside adapted to beengaged by the aforesaid lock, substantially as described.

Witness my hand to the foregoing specification this l2th day ofFebruary, 1903.

HERMANN H. MEYER. Witnesses:

R. B. MosER, V. KEYS.

